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Microbial Population Structures in the Deep Marine Biosphere

Huber, Julie A., Mark Welch, David B., Morrison, Hilary G., Huse, Susan M., Neal, Phillip R., Butterfield, David A., Sogin, Mitchell L.·2007·Science

Abstract

The analytical power of environmental DNA sequences for modeling microbial ecosystems depends on accurate assessments of population structure, including diversity (richness) and relative abundance (evenness). We investigated both aspects of population structure for microbial communities at two neighboring hydrothermal vents by examining the sequences of more than 900,000 microbial small-subunit ribosomal RNA amplicons. The two vent communities have different population structures that reflect local geochemical regimes. Descriptions of archaeal diversity were nearly exhaustive, but despite collecting an unparalleled number of sequences, statistical analyses indicated additional bacterial diversity at every taxonomic level. We predict that hundreds of thousands of sequences will be necessary to capture the vast diversity of microbial communities, and that different patterns of evenness for both high- and low-abundance taxa may be important in defining microbial ecosystem dynamics.

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Metadata

Authors
Huber, J. A., Mark Welch, D. B., Morrison, H. G., Huse, S. M., Neal, P. R., Butterfield, D. A., & Sogin, M. L.
Venue
Science
Published
2007-10-05
Volume
318
Issue
5847
Pages
97-100
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2086131703
Cited by
887
References
0
FWCI
60.28
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.